The above errors occur when the referenced forms either cannot be found, or cannot be opened. In the above example, the problem is with APPSTAND.fmb and INVSTAND.fmb. This will occur if FORMS_PATH has not been modified, and $AU_TOP/forms/US has not been added as described earlier.

If you have modified FORMS_PATH and still see the problem, check the following:

Make sure you have exported the environment variable FORMS_PATH: start a new shell and confirm that the output from the command "echo $FORMS_PATH" still shows the new setting.

Confirm you have read permissions on the referenced forms, such as $AU_TOP/forms/US/APPSTAND.fmb.

Check that you do not have any old versions in your current working directory, as these will be picked up by Forms before it searches through the directories listed in FORMS_PATH.

Ensure you can open the referenced forms in the builder

If all else fails, use OS tracing (truss or strace as applicable) to determine why the referenced forms cannot be found or opened.